 For this purpose it is divided into 360 equal parts, called degrees, each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. The degrees, minutes, and seconds, are marked thus, °, ', " ; and 9°...  First Lessons in Geometry: With Practical Applications in Mensuration, and ... - Page 20by Charles Davies - 1840 - 252 pagesFull view - About this book
 | Frederick Emerson - Arithmetic - 1834 - 300 pages
...GEOGRAPHICAL MEASURE. The circumference of the globe — like every other circle — is divided in 360 equal parts, called degrees. Each degree is divided into 60 equal parts called miles, or minutes. Three miles are called a league. On the equator, 69^ statute miles are equal to... | |
 | B[enjamin] Franklin Callender - Measurement - 1836 - 226 pages
...FIFTH. CHAPTER I. MENSURATION OF ANGLES AND TRIANGLES. SECTION I. Definitions and ProblemS. Every circle is divided into 360 equal parts, called degrees ;...degree is divided into 60 equal parts, called minutes ; each minute is divided into 60 equal parts, called seconds; seconds are divided in the same manner,... | |
 | Benjamin Peirce - Geometry - 1837 - 216 pages
...be divided into 360 equal arcs called degrees, and marked thus (°). For instance, 60° is read 60 degrees. Each degree is divided into 60 equal parts called minutes, and marked thus ('). Each minute is divided into 60 equal parts called seconds, and marked thus ("). When... | |
 | Thomas Kerigan - Nautical astronomy - 1838 - 804 pages
...firmament. — The equator, or equinoctial, as well as all the other great circles of the spheres, is divided into 360 equal parts, called degrees ; each degree is divided into GO equal parts, called minutes, and each minute into 60 equal parts, called seconds. ,57 The Meridian... | |
 | Frederick Emerson - Arithmetic - 1839 - 300 pages
...GEOGRAPHICAL MEASURE. The circumference of the globe — like every other circle — is divided in 360 equal parts, called degrees. Each degree is divided into 60 equal parts called miles, or minutes. Three miles are called a league. On the equator, 69-g- statute miles are equal to... | |
 | Charles Davies - Geometrical drawing - 1846 - 254 pages
...this curve will be the circumference of a circle. 25. For what is the circumference of a circle used ? The circumference of a circle is used for the measurement of angles. 26. How is it divided? It is divided into 360 equal parts called degrees, each degree is divided into... | |
 | Charles Davies - Arithmetic - 1847 - 368 pages
...longitude, and also in measuring the motions of the heavenly bodies. Every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes, and each minute into 60 seconds. TABLE. 60 seconds " make 1 minute, marked '. 60 minutes 1... | |
 | Charles Davies - Arithmetic - 1847 - 368 pages
...longitude, and also in measuring the motions of the heavenly bodies. Every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes, and each minute into 60 seconds. TABLE. 60 seconds " make 1 minute, marked '. 60 minutes 1... | |
 | Charles Davies - Arithmetic - 1848 - 88 pages
...the heavenly bodies. 2. How is every circle supposed to be divided ? Every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes, and each minute into 60 seconds. 3. Repeat the table. TABLE. 60 seconds " make 1 minute, marked... | |
 | Charles Davies - Arithmetic - 1849 - 184 pages
...the heavenly bodies. 2. How is every circle supposed to be divided ? Every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes, and each minute into 60 seconds. Solid, or Cubic Measure. 1. For what is Solid, or Cubic Measure... | |
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